Search for Supersymmetry via Associated Production of Charginos and Neutralinos in Final States with Three Leptons

Journal Article · Fri Oct 07 04:00:00 EDT 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.95.151805· OSTI ID:20696539

Abazov, V M; Alexeev, G D; Kalinin, A M; Kharzheev, Y M; Malyshev, V L; Vertogradov, L S; Yatsunenko, Y A ^[1]; Abbott, B; Gutierrez, P; Hall, I; Jain, S; Kopal, M; Pompos, A; Severini, H; Skubic, P; Strauss, M; Zhang, X ^[2]; Abolins, M; Brock, R; Dyer, J ^[3]

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1. Joint Institute for Nuclear Research, Dubna (Russian Federation)
2. University of Oklahoma, Norman, Oklahoma 73019 (United States)
3. Michigan State University, East Lansing, Michigan 48824 (United States); and others

A search for associated production of charginos and neutralinos is performed using data recorded with the D0 detector at a pp center-of-mass energy of 1.96 TeV at the Fermilab Tevatron Collider. This analysis considers final states with missing transverse energy and three charged leptons, of which at least two are electrons or muons. No evidence for supersymmetry is found in a data set corresponding to an integrated luminosity of 320 pb{sup -1}. Limits on the product of the production cross section and leptonic branching fraction are set. For the minimal supergravity model, a chargino lower mass limit of 117 GeV at the 95% C.L. is derived in regions of parameter space with enhanced leptonic branching fractions.

• OSTI ID: 20696539
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 95; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BRANCHING RATIO
CENTER-OF-MASS SYSTEM
CROSS SECTIONS
ELECTRONS
FERMILAB TEVATRON
GEV RANGE 100-1000
INCLUSIVE INTERACTIONS
LUMINOSITY
MASS
MATHEMATICAL SPACE
MUONS
PARTICLE PRODUCTION
PROTON-PROTON INTERACTIONS
SPARTICLES
SUPERGRAVITY
SUPERSYMMETRY
TEV RANGE 01-10
TRANSVERSE ENERGY